Final answer:
A communication delivered through speech or signals is known as Verbal communication. Therefore, the correct option is D. Verbal communication.
Step-by-step explanation:
Verbal communication encompasses the use of spoken or written words to convey messages. It is a fundamental aspect of human interaction and includes face-to-face conversations, speeches, presentations, and any other form of communication where words are used to convey information. Verbal communication can take various forms, from casual conversations to formal presentations, and it plays a crucial role in conveying thoughts, ideas, emotions, and information.
Unlike written communication (option A), which involves the use of written words, non-verbal communication (option B) involves conveying messages without words, such as through body language and gestures. Interpersonal communication (option C) refers to communication between individuals and may involve both verbal and non-verbal elements.
Therefore, in the context of the question, the most appropriate term for communication delivered through speech or signals is "verbal communication."
Therefore, the correct option is D. Verbal communication.